A crew works with freshly poured concrete on a driveway in Indianapolis. Driveway extension ideas for homeowners looking to extend or expand a concrete or asphalt driveway. You purchased a new RV or maybe your teenager started to drive. If your existing driveway doesn't provide enough room for any number of reasons, you may need to widen or extend your driveway to better suit your needs.
Vitamins are conventionally divided into the fat-soluble group A, D, E and K, and the water-soluble group, vitamin C (ascorbic acid) and the B vitamins-B 1 (thiamine), B 2 (riboflavine, riboflavin), nicotinic acid, B6 (pyridoxine), pantothenic acid, biotin, folic acid and B12.
vitamin noun [C]. B2 any of a âgroup of ânatural âsubstances that are ânecessary in âsmall âamounts for the âgrowth and good âhealth of the âbody: a vitamin âpill Oranges are âfull of vitamin C.More examples. 1  A â diet â deficient in vitamin D may â cause the â disease â rickets. biology any of a âgroup of ânatural âsubstances that are ânecessary in âsmall âamounts for âgrowth and good âhealth and that are âobtained from âfood. (Definition of vitamin from the Cambridge Academic Content Dictionary Â© Cambridge University Press).